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The lens in the adult human eye blocks nearly 100 percent of the sun's UV rays. As part of the normal aging process, the eye's natural lens eventually blocks some short-wavelength blue light as well â the type of blue light most likely to cause damage to the retina and lead to macular degeneration and vision loss.
The green light is more damaging to the eye because it has a wavelength of 533 nm and a high frequency of 1064 nm. The red light has a weaker effect coming in 670 nm, 650 nm, and 635 nm. The frequency of the red light is lower. The power of laser points vary from 1-5 mW.